WO1997038268A1 - Appareil de chauffage electrique - Google Patents

Appareil de chauffage electrique Download PDF

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Publication number
WO1997038268A1
WO1997038268A1 PCT/EP1996/001764 EP9601764W WO9738268A1 WO 1997038268 A1 WO1997038268 A1 WO 1997038268A1 EP 9601764 W EP9601764 W EP 9601764W WO 9738268 A1 WO9738268 A1 WO 9738268A1
Authority
WO
WIPO (PCT)
Prior art keywords
thermostat
heating
heater according
thermostats
air
Prior art date
Application number
PCT/EP1996/001764
Other languages
German (de)
English (en)
Inventor
Günter Petz
Heinz Landauer
Original Assignee
Ewt Elektrogeräte Gmbh & Co. Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ewt Elektrogeräte Gmbh & Co. Kg filed Critical Ewt Elektrogeräte Gmbh & Co. Kg
Publication of WO1997038268A1 publication Critical patent/WO1997038268A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2064—Arrangement or mounting of control or safety devices for air heaters
    • F24H9/2071—Arrangement or mounting of control or safety devices for air heaters using electrical energy supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/355—Control of heat-generating means in heaters
    • F24H15/37—Control of heat-generating means in heaters of electric heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/40—Control of fluid heaters characterised by the type of controllers
    • F24H15/407—Control of fluid heaters characterised by the type of controllers using electrical switching, e.g. TRIAC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
    • F24H3/0411—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between for domestic or space-heating systems
    • F24H3/0417—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between for domestic or space-heating systems portable or mobile

Definitions

  • the invention relates to an electric heating device, in particular a fan heater or air conditioning device, humidifier or the like. with a housing for a heating element, a blower and a thermostat for preselecting switch-on temperatures and supply and exhaust air openings for the blower air throughput.
  • thermostats are used in electrical devices of the above type, which trigger circuits of the heating element in accordance with the preselected settings.
  • the use of these devices is restricted since the thermostats do not allow preselection of circuits for cold air deliveries.
  • this object is achieved by two thermostats and switching electronics, that a thermostat as a winter operating actuator, together with the other thermostat serving as a summer operating actuator, and the switching electronics control the heating operation and the air circulation, and that the thermostat serving as a summer operating actuator if there is an interruption of Heating operation and room air circulation by means of the switching electronics controls the supply of cold air by the fan.
  • an electrical heater or air conditioner or the like to be called an all-season product. created that in the cold, For example, during winter times, through which thermostats allow settings for heat generation and discharge of the heat generated by air circulation, in warm times of the year, for example summer, but provide a cold air flow serving for ventilation and cooling.
  • the heater is therefore particularly suitable for use in places such as greenhouses, conservatories or the like where uniform temperatures are required all year round. Operating positions can be easily formed by opening and closing the two thermostats.
  • the two thermostats control the heating operation when operating stages forming closed positions.
  • the heating current is conducted via this and, while the thermostatic element forming the summer operating element is open, by means of a control current, the electronic switching element, e.g. Triac to bring in a conductive state, via which the motor current for the blower can be guided and that when the thermostat forming the winter operating actuator is opened, the heating operation can be interrupted while the fan operation is maintained.
  • the two thermostats control the heating operation when operating stages forming closed positions.
  • the electronic switching element e.g. a triac
  • the heater also has to be in a "stand by" position. This is achieved simply by the one serving as the winter operating actuator Thermostat assumes the open position and blocks the heating current and, when the thermostat serving as a summer operating element is closed at the same time, the control current of the triac is short-circuited, whereby the triac serves as a blocking element for the motor current.
  • a light source e.g. Glow lamp, arranged, which as an optical display element indicates the taking of operating positions by steady light and the taking of the resting positions of blower motor or blower motor and heating operation by flashing light or vice versa.
  • actuation slides are provided on the receiving housing, in particular on the front grille, which can be coupled to the thermostats.
  • the two actuating slides can preferably be associated with scales or markings which reproducibly illustrate the respective positions of the thermostats.
  • the heating element required for heating operation can be formed in one piece in the heater.
  • the heating element is formed by mmdesten ⁇ two heating element parts which can be interconnected by means of a switch or electronic switching elements.
  • the heating element parts can be designed for any power, for example 1000 or 1500 watts.
  • the switch or the required switching elements of the electronic switching elements are arranged on the receiving housing, in particular on the front grille. It corresponds to the idea of the invention in the devices mentioned at the outset to replace one or both thermostats with other switching elements, for example air pressure switches.
  • FIG. 1 shows a front grille of a heater in front
  • FIG. 2 shows a heater open without fan blades, in front view
  • FIG. 3 shows a heater in longitudinal section
  • FIG. 4 shows a circuit diagram of a heater.
  • FIG. 1 denotes the receptacle housing for the heater, which has supply air openings 2 on the rear and 3 exhaust air openings 4 in a front grille 4 for an air throughput flow.
  • the air throughput flow can be formed by a fan 5, which consists of a blower motor 5 'and fan blades 5 "(FIG. 3) and is accommodated in the receiving housing 1.
  • a heating element 6 (FIG. 2) is also arranged in the receiving housing 1, which, as shown in FIG 3 and 4 shown, in the exemplary embodiment formed by two mutually parallel heating element parts 6 'and 6 ".
  • the heating element parts 6 ', 6 " are designed for heat outputs of 1000 and 1500 watts, respectively.
  • the heating element part 6" can be interconnected with the heating element part 6' by means of a switch 7 arranged in the front grille 3.
  • the receiving housing 1 further accommodates a thermostat 9 serving as a winter operating element and a thermostat 8 serving as a summer operating element.
  • the thermostats 8 and 9 are also on the front Grid 3 guided actuation slides 10 and 11 can be coupled, whereby settings of both thermostats 8, 9 only require simple displacement movements.
  • the scales 12, 13 have basic positions 12 ', 13' which e.g. are marked by a snow symbol 12 * or line marking 13 ', in which the thermostats 8, 9 assume the open positions. Furthermore, the scales 12, 13 indicate a number of operating positions 12 "and 13".
  • An opening 14 is formed on the front grille 3 which is separated by a translucent member, e.g. an optical lens 15, overlapped behind which a light source, e.g. a glow lamp 16 is arranged.
  • On the back of the receiving housing 1 there is a grip strip 17 or a suspension eye 18 for the fan heater.
  • switching electronics with a triac 19 acting as a switching element is accommodated in a receptacle 1 on a circuit board 20.
  • thermostat 9 assumes the open position and the thermostat 8 is brought into the closed position, then no current is supplied to the heating elements 6 ', 6 "and by short-circuiting the control current for the triac 19 of the switching electronics by the thermos ⁇ act 8 of the triac 19 blocked and no current passed through the fan motor 5 * (standby position).
  • the thermostat 9 is to be brought into the open position with a setting lower than room temperature and the thermostat 8 is to be brought into the open position with a setting lower than room temperature.
  • the control current for triac 19 passes from L via Cl, RI, triac 19 to N.
  • the triac 19 is opened, so that motor current passes from L via blower motor 5 *, triac 19 to N, whereby the fan motor 5 'rotates.
  • the heating flow through the thermostat 9 is interrupted (fan operation in summer).
  • the glow lamp 16 gives when operating positions, e.g. running fan motor 5 ', continuous light.
  • the triac 19 acts like a short circuit, so that current for the glow lamp 16 flows from N via triac 19, D2, R6, glow lamp 16 to L. Due to a low resistance of R6, the glow lamp current is kept constant and flashing of the glow lamp 16 is suppressed.
  • the blower motor and heating mode flashes the glow lamp 16.
  • the triac 19 is not conductive. E ⁇ therefore flows glow lamp current from N via Dl, R5, R4, in C7.
  • the capacitor C7 is slowly charged and when the
  • Glow lamp ignition voltage of approximately 80 volts ignites the glow lamp 16.
  • the capacitor C7 is subsequently discharged by the glow lamp 16. If the incandescent voltage (approx. 60 volts) of the glow lamp 16 is undershot, this extinguishes. The process described above for flashing lights repeated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Resistance Heating (AREA)
  • Saccharide Compounds (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Control Of Resistance Heating (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)

Abstract

L'invention concerne un appareil de chauffage électrique, en particulier un radiateur soufflant ou un dispositif de climatisation, un humidificateur d'air ou un appareil analogue, comprenant un caisson dans lequel est logé un élément de chauffage, un ventilateur et un thermostat servant à la présélection de températures de mise en marche ainsi que d'ouverture d'entrée et de sortie pour le flux d'air du ventilateur. Des connexions pour l'émission de chaleur, la circulation d'air et la fourniture d'air froid sont réalisées grâce à des thermostats (8, 9) et à une unité électronique de commutation. Un thermostat (9) qui agit en tant qu'élément de régulation de fonctionnement 'hiver' conjointement avec l'autre thermostat (8), qui agit en tant qu'élément de régulation de fonctionnement 'été', et avec l'unité de commutation électronique, régule le chauffage et la circulation d'air dans la pièce. Le thermostat (8), qui agit comme élément de régulation de fonctionnement 'été', régule, par l'intermédiaire de l'unité de commutation électronique, la fourniture d'air froid par le ventilateur, lorsque le chauffage et la circulation d'air sont interrompus.
PCT/EP1996/001764 1996-04-09 1996-04-26 Appareil de chauffage electrique WO1997038268A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19613989A DE19613989A1 (de) 1996-04-09 1996-04-09 Elektrisches Heizgerät
DE19613989.9 1996-04-09

Publications (1)

Publication Number Publication Date
WO1997038268A1 true WO1997038268A1 (fr) 1997-10-16

Family

ID=7790786

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1996/001764 WO1997038268A1 (fr) 1996-04-09 1996-04-26 Appareil de chauffage electrique

Country Status (2)

Country Link
DE (2) DE19613989A1 (fr)
WO (1) WO1997038268A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019004952A1 (de) * 2019-07-17 2021-01-21 Truma Gerätetechnik GmbH & Co. KG Verfahren zur Fertigung einer Heizvorrichtung sowie Heizvorrichtung
CN113251655A (zh) * 2021-05-14 2021-08-13 青岛海尔空调器有限总公司 一种暖风机多档位湿度调节方法、装置及暖风机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4110600A (en) * 1976-06-24 1978-08-29 Mcgraw-Edison Company Thermostatically controlled plural heat output portable electric space heater
EP0072663A1 (fr) * 1981-08-17 1983-02-23 Kemtron International (Holdings) Limited Ventilateur polyvalent
EP0188972A1 (fr) * 1985-01-03 1986-07-30 Seb S.A. Radiateur à ventilateur

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4110600A (en) * 1976-06-24 1978-08-29 Mcgraw-Edison Company Thermostatically controlled plural heat output portable electric space heater
EP0072663A1 (fr) * 1981-08-17 1983-02-23 Kemtron International (Holdings) Limited Ventilateur polyvalent
EP0188972A1 (fr) * 1985-01-03 1986-07-30 Seb S.A. Radiateur à ventilateur

Also Published As

Publication number Publication date
DE29607624U1 (de) 1997-08-07
DE19613989A1 (de) 1997-10-16

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